Road Bike

Glass Slipper
Shoe Sale

Mountain Bike

What's New?

Is it New Bike Time? Always!
04/03/19- Winter is OVER!!! It's been a long, slippery slog this year, but we're finally seeing light at the end of the tunnel. And great timing, since the TREKFest bicycle sale runs April 4th-15th! Don't waste another nice day on impulse power when you could be riding at Warp 9. Chain Reaction features the very best bikes from Trek & Electra, as well as the highest-quality travel bikes from Bike Friday. Road, Mountain, Hybrid, Electric assist, Kids... we've got them all. Probably the best selection in a single location you'll find anywhere on the peninsula too.
Got a bike that needs repairs?
We can handle that! If you purchased your bike from us, remember that you can bring it in anytime, without calling ahead, for minor on-the-spot adjustments of brakes, gears and wheels (at no charge; this is included with any bike purchased from us). For flat tires, again, no appointment needed. Where possible we try and do flat tires while you wait, but there will be times that's not possible. At most you will be leaving your bike overnight. For normal (bigger) repairs, calling ahead to schedule an appointment might make sense because the repair backlog at better shops sometimes goes from overnight to 5 days in the blink of an eye!
It's E-Bike time at Chain Reaction! E-Bikes are the latest thing; find out why! Commute to the office without needing a shower, bring home the groceries (even if you live on top of a hill!) or keep up with your obsessive-cyclist partner. Prices start at just $1299 (Oyama folding E-bike) up to the incredible Trek Super Commuter 8 at $5199.

Disc Brakes for Road Bikes- Making the right choice

Disc brakes are the latest thing for road bikes. But are they the right choice for you? We discuss the trade-offs including benefits, cost, added weight and maintenance requirements.

Just a few of the bikes we sell. One of them is just right for you!

Trek Dual Sport 2 Women's
$619.99 $659.99 6% Savings
Dual Sport 2 Women's is a go-anywhere hybrid bike that performs on a variet...
Trek Marlin 5
$499.99 $539.99 7% Savings
Marlin 5 is a trail-worthy daily rider that's perfectly suited for everyday...
Trek Domane SLR 6 Disc Women's
$4,499.99 $5,499.99 18% Savings
Domane SLR 6 Disc Women's is built on the finest Domane frame we've ever ma...
Trek Dual Sport 4
$1,099.99 $1,159.99 5% Savings
Dual Sport 4 is the highest-performance hybrid bike in the lineup. Of all D...
Trek Zektor i3
$849.99 $1,099.99 23% Savings
Zektor is a new way to move through cities and urban areas. It's just as pr...
Trek Checkpoint AL 3
$1,149.99 $1,199.99 4% Savings
Checkpoint AL 3 may be the introductory gravel bike in the lineup, but it's...
Trek Precaliber 24 (7-Speed) - Boys
$339.99 $359.99 6% Savings
Trek’s Precaliber 24 is a true mountain bike perfect for even the most acti...
Trek FX 3 Women's Disc
$769.99 $819.99 6% Savings
FX 3 Women's Disc is a versatile hybrid bike with powerful hydraulic disc b...
Trek Powerfly 8 FS Plus E-Bike
$3,999.99 $4,999.99 20% Savings
Powerfly builds on its success with a new full suspension lineup that borro...
Trek Precaliber 24 7-speed Girl's
$339.99 $359.99 6% Savings
Key features - Mountain bike styling is perfect for young adventurers -...
Electra Cruiser 7D Ladies'
$339.99 $359.99 6% Savings
Modern cruiser with over twenty years of refinement built in to improve the...
Trek Domane AL 3
$749.99 $959.99 22% Savings
Key features - Smooth, comfortable, confidence-inspiring geometry for lo...